Filtration apparatus comprising an ultrasonic cleaning device and corresponding cleaning process
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United States of America Patent
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-
Nov 5, 1991
Grant Date -
N/A
app pub date -
Nov 7, 1989
filing date -
Nov 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The filtration apparatus comprises a bundle of porous filtering elements (12) which are disposed over a certain length of a casing (2) and over a substantial part of its cross-section, and at least one assembly of ultrasonic transducers (15) disposed in at least one cross-sectional plane of the casing regularly spaced at its periphery. Each of the transducers is placed within an opening passing through the casing in a direction perpendicular to the axis of the casing. Ultrasonic waves are emitted within the casing in the direction of the bundle of filtering elements in a zone delimited by a cone, the axis of which extends in a direction perpendicular to the filtering elements and the vertex of which is located in the vicinity of the wall of the casing. The particles torn out by the ultrasonic waves from the filtering elements are recovered by an evacuation conduit (8). The invention is applicable, in particular, to the treatment of fluid used in the nuclear industry, and of other dangerous products.
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